|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
|
|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
In Reply to: Dumb Question for Boldeagle posted by Dan on December 20, 2004 at 13:11:52:
Q refers to the amount of damping associated with a resonance. Higher Q means less damping and a higher, sharper peak. Applied to the woofer, and as we use it here, it relates to the shape of the woofer response curve. It's kind of a shorthand way of explaining what the bass character of a speaker is like. Picture the typical shape of a woofer response curve. Nice and flat through the midrange, and then at some low frequency it slopes off with less and less output as the frequency decreases. A low Q woofer will have a rounded corner where it rolls off at low frequencies. A high Q woofer alignment will have a peak before it rolls off. Q's have numerical values like 0.6 (that's pretty low, but found in the AR-9) or 0.9 or even higher. All Q's higher than 0.707 have a peak before they roll off. At 0.8 or 0.9 it's barely noticeable (Advents have a Q = 0.9). For Q's of 1 and above, the bass tends more and more to be thumpy and "one note". A lot of inexpensive speakers have high Q's (like 1.5 or even 2) to give the impression of more bass. Even some expensive speakers have heavily peaked bass to give an impression of greater bass power. The Rogers LS3/5a has a bass peak at around 100 Hz to make up for its lack of real bass extension. And the EgglestonWorks Andra II at $18,000/pair has a huge bass peak at around 50-55 Hz. The reviewers loved it.As a general rule, the lower the bass resonance frequency, the lower the Q you want. And in most cases that's what you find.
I hope that helps. If you want more, please contact me.
Jerry
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Dumb Question for Boldeagle - Bold Eagle 12/20/0414:39:39 12/20/04 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
